/*
 * Copyright (c) 2019 Spotify AB.
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.spotify.heroic.aggregation

import java.util.*
import java.util.concurrent.TimeUnit

data class Options(
    val sampling: Optional<SamplingQuery>,
    val aggregation: Optional<Aggregation>
) : Aggregation {

    override fun apply(context: AggregationContext): AggregationInstance {
        return aggregation
                .orElse(Empty)
                .apply(context.withOptions(
                    sampling.flatMap { Optional.ofNullable(it.size) },
                    sampling.flatMap { Optional.ofNullable(it.extent) }))
    }

    companion object {
        const val NAME = "opts"
        @JvmField val DEFAULT_SIZE = TimeUnit.MILLISECONDS.convert(60, TimeUnit.MINUTES)
    }
}
